President/CEO Mike Sylvestre commented, “This final batch of Granduc assay results once again confirms the continuity of copper mineralization over a 1.2-kilometre strike length. The overall success of the program continues to reinforce the potential resource upside of Granduc. With all 2011 drill results complete, Castle is now focused on completing an updated NI 43-101 resource estimate, currently being compiled by SKR Consulting (Vancouver), to be released later this month.”